It's possible that you've developed an uneven coating of pad material on the brakes which can be helped by re-bedding the pads. For whatever reason this seems to be a pretty common problem with Honda brakes. This is the procedure for bedding in brakes. Granted it's supposed to be done when the pads are new, but it's at least worth a shot seeing as it don't cost anything and doesn't require any actual work on the car.

It took me a while to actually believe in the "rotors don't actually warp" argument but after reading this article from Stoptech several times I'm beginning to be convinced myself.

Re-bedding the pads may or may not fix your problem but if it doesn't it's usually because there's enough unevenness to the pad material built up on the rotor such that a re-bed won't help. Then you will have to get the rotors turned or replace them, but it's not because they're "warped."